CHAPTER FIFTEEN
CALENDARS AND COUNTING
Tonia Sharlach
The past is a foreign country: they do things differently there.
(L. P. Hartley)
Do not worry about your problems with mathematics: I assure you mine are far
greater.
(A. Einstein)
G
eneral histories of the Ancient Near East often stress the huge treasure-trove of
tablets that survive from Mesopotamia and the economic focus of many cuneiform
archives. It is true that the vast majority of tablets that have been recovered to date from
the third millennium BCare administrative in nature (Figure 15. 1 ). Accounting and
administration being what they are, counting, measuring, and dating are central. The
scribes wrote to record how many workers at what rate of pay, how much of the canal
had been dredged, how many units of barley were harvested, what interest rate a loan
bore, and so on. To convey this information clearly, the Sumerians used unique systems
of counting and calendrics. While they may seem cumbersome to us, studying them can
reveal a world wherein everything had its proper place. This chapter aims to provide an
overview of counting – that is, numbers, metrology, mathematics and its evolution, and
numeracy and scribal education in the third millennium. We will then turn to calendars,
that is, year names and month names, as well as calendrical oddities and reforms.
COUNTING
That one could (or should) write more than a paragraph on counting may surprise and
dismay the reader: the average historian has little affinity for mathematics. Because we
count using a decimal system ( 1 , 10 , 100 , 1000 etc.), and other people, such as the
Greeks and Romans, did too, we may imagine that a decimal system was somehow
universal. Some have even linked this to human anatomy: a guide to ancient mathe-
matics tells us, “As Aristotle had noted long ago, the widespread use today of the deci-
mal system was but the result of the anatomical accident that most of us are born with
ten fingers and ten toes” (Boyer 1991 : 4 ). Indeed, some early scholars saw in cuneiform
records evidence for a decimal system.^1 But the main Sumerian counting system used
sixty as a base. The critical numbers were thus 1 , 10 , 60 , 120 , 360 , 3600 etc.